add calculate and merge coverage files

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/jackc/pgx/v4 v4.12.1-0.20210724153913-640aa07df17c
 	github.com/jmoiron/sqlx v1.3.1
 	github.com/pkg/errors v0.9.1
+	github.com/stretchr/testify v1.8.3
 	go.unistack.org/micro-client-http/v4 v4.0.2
 	go.unistack.org/micro-codec-json/v4 v4.0.0
 	go.unistack.org/micro-codec-jsonpb/v4 v4.0.0
@@ -25,6 +26,7 @@ require (
 	go.unistack.org/protoc-gen-go-micro/v4 v4.0.7
 	golang.org/x/mod v0.12.0
 	golang.org/x/sync v0.3.0
+	golang.org/x/tools v0.11.0
 	google.golang.org/protobuf v1.31.0
 	modernc.org/sqlite v1.21.0
 )
@@ -37,6 +39,7 @@ require (
 	github.com/acomagu/bufpipe v1.0.4 // indirect
 	github.com/cenkalti/backoff/v3 v3.2.2 // indirect
 	github.com/cloudflare/circl v1.3.3 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/fatih/structtag v1.2.0 // indirect
@@ -76,6 +79,7 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
 	github.com/pjbgf/sha1cd v0.3.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rs/zerolog v1.30.0 // indirect
 	github.com/ryanuber/go-glob v1.0.0 // indirect
@@ -92,7 +96,6 @@ require (
 	golang.org/x/sys v0.11.0 // indirect
 	golang.org/x/text v0.12.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.11.0 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -987,6 +987,7 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
+github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/syndtr/gocapability v0.0.0-20170704070218-db04d3cc01c8/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
 github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
 github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=

internal/analyzer/coverage/coverage.go

@@ -0,0 +1,94 @@
+package coverage
+
+import (
+	"context"
+	"fmt"
+	"git.unistack.org/unistack-org/pkgdash/internal/models"
+	"golang.org/x/tools/cover"
+	"io"
+	"strings"
+)
+
+func Analyze(ctx context.Context, dataCoverage io.Reader, pack models.Package) (float64, error) {
+	calculcate, err := calculateFiles(dataCoverage)
+	if err != nil {
+		return 0, err
+	}
+
+	mapCover := make(map[string]float64)
+	{
+		tree, err := GetTreeFromGit(ctx, pack.URL)
+		if err != nil {
+			return 0, err
+		}
+		list, err := tree.GoFileList("")
+		if err != nil {
+			return 0, err
+		}
+
+		for _, f := range list {
+			mapCover[f] = 0.0
+		}
+	}
+
+	cur := len(mapCover)
+
+	for _, d := range calculcate.Files {
+		file := strings.TrimPrefix(d.Name, pack.Name+"/")
+		mapCover[file] = d.Coverage
+	}
+
+	// check)
+	if len(mapCover) != cur {
+		fmt.Printf("add new keys, was: %d, has: %d", cur, len(mapCover))
+	}
+
+	//TODO add calculate full
+
+	return 0, nil
+}
+
+type Data struct {
+	Files []*calculateFile
+	Set   bool
+}
+
+type calculateFile struct {
+	Name     string
+	Coverage float64
+}
+
+func calculateFiles(coverSrc io.Reader) (d *Data, err error) {
+	profiles, err := cover.ParseProfilesFromReader(coverSrc)
+	if err != nil {
+		return nil, err
+	}
+
+	d = new(Data)
+	for _, profile := range profiles {
+		fn := profile.FileName
+		if profile.Mode == "set" {
+			d.Set = true
+		}
+
+		d.Files = append(d.Files, &calculateFile{
+			Name:     fn,
+			Coverage: percentCovered(profile),
+		})
+	}
+	return d, err
+}
+
+func percentCovered(p *cover.Profile) float64 {
+	var total, covered int64
+	for _, b := range p.Blocks {
+		total += int64(b.NumStmt)
+		if b.Count > 0 {
+			covered += int64(b.NumStmt)
+		}
+	}
+	if total == 0 {
+		return 0
+	}
+	return float64(covered) / float64(total) * 100
+}

internal/analyzer/coverage/coverage_test.go

@@ -0,0 +1,36 @@
+package coverage
+
+import (
+	"context"
+	"git.unistack.org/unistack-org/pkgdash/internal/models"
+	"github.com/stretchr/testify/assert"
+	"os"
+	"testing"
+)
+
+func Test_Calculate(t *testing.T) {
+	file, err := os.Open("cover_test.out")
+	assert.Nil(t, err)
+	defer func() {
+		assert.Nil(t, file.Close())
+	}()
+
+	dataFiles, err := calculateFiles(file)
+	assert.Nil(t, err)
+	assert.NotNil(t, dataFiles)
+}
+
+func Test_Analyze(t *testing.T) {
+	file, err := os.Open("cover_test.out")
+	assert.Nil(t, err)
+	defer func() {
+		assert.Nil(t, file.Close())
+	}()
+
+	analyze, err := Analyze(context.Background(), file, models.Package{
+		Name: "go.unistack.org/micro/v4",
+		URL:  "https://git.unistack.org/unistack-org/micro.git",
+	})
+	assert.Nil(t, err)
+	assert.Equal(t, analyze, 0.0)
+}

internal/analyzer/coverage/git.go

@@ -0,0 +1,70 @@
+package coverage
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing/filemode"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/go-git/go-git/v5/storage/memory"
+	"os"
+	"regexp"
+	"strings"
+)
+
+var (
+	fileNil = errors.New("file pointer is nil")
+)
+
+func GetTreeFromGit(ctx context.Context, url string) (*Tree, error) {
+	cloneOpts := &git.CloneOptions{
+		URL:      url,
+		Progress: os.Stdout,
+	}
+
+	repo, err := git.CloneContext(ctx, memory.NewStorage(), nil, cloneOpts)
+	if err != nil {
+		return nil, err
+	}
+
+	ref, err := repo.Head()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get head: %v", err)
+	}
+
+	commit, err := repo.CommitObject(ref.Hash())
+	if err != nil {
+		return nil, fmt.Errorf("failed to get commit: %v", err)
+	}
+
+	tree, err := commit.Tree()
+
+	return &Tree{tree}, err
+}
+
+type Tree struct {
+	*object.Tree
+}
+
+func (t Tree) GoFileList(pattern string) ([]string, error) {
+	matcher, err := regexp.Compile(pattern)
+	if err != nil {
+		return nil, err
+	}
+
+	var list []string
+	err = t.Files().ForEach(func(file *object.File) error {
+		if file == nil {
+			return fileNil
+		}
+		if file.Mode == filemode.Regular && strings.HasSuffix(file.Name, ".go") && !strings.HasSuffix(file.Name, "_test.go") && matcher.MatchString(file.Name) {
+			list = append(list, file.Name)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return list, err
+}